Prevent ACL Injuries | IU Health

ACL Injury Prevention

The ACL (anterior cruciate ligament (ACL) is one of four major ligaments that provide stability to the knee joint. These fibrous bands attach bone to bone and help control the excessive motion of the knee joint and keep the lower leg from sliding too far forward. Of the four major ligaments of the knee, ​ are the most common. The majority of ACL repairs that occur each year are done on young athletes (under age 25) and female athletes.


ACL injuries are common in sports that involve sudden changes of direction, such as football, and soccer. Most are non-contact injuries that occur during sudden twisting motion (for example, when the feet are planted one way and the knees are turned another way) or when landing from a jump.

Are Women at Higher Risk of ACL Injury?

The causes of ACL injury have recently been the focus of research. Factors contributing to ACL injuries include ground hardness, grass type, and cleat type. But one of the other major findings is that women are nearly three times more likely to have ACL injuries than men. And some statistics say that a female soccer player is eight times more likely to injure her ACL than a male soccer player.

Researchers believe this may be due to differences in hormone levels on ligament strength and stiffness, neuromuscular control, lower limb biomechanics, ligament strength, and fatigue. Findings have shown a difference in in women when landing jumps (women appear to have less hip and knee flexion than men).


Athletes can reduce their risk of ACL injuries by performing training drills that require balance, power, and agility. Adding plyometric exercises, such as jumping and balance drills, help improve neuromuscular conditioning and muscular reactions and ultimately shows a decrease in the risk of ACL injury. Many team physicians now routinely recommend an ACL conditioning program, especially for their female players.

The Santa Monica ACL Prevention Project developed an ACL Injury Prevention Program specifically for female soccer players. This 15-minute training program incorporates balance, agility and performance drills into the warm-up phase of training and practice.

Phases of theACL Injury Prevention Programshould be performed at least 2-3 times per week during the season and includes:

The Bottom Line

For both men and women who participate in start-and-stop sports, appropriate skills training such as those in the above program may be the key to staying injury free.

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  • Santa Monica Orthopaedic and Sports Medicine Research Foundation, ACL Injury Prevention Project.
  • American Academy of Orthopaedic Surgeons, Three Studies Examine Causes, Prevention of Acl Injuries in Women, News Item, February 26, 2005.

Video: ACL Injury Prevention - What Causes ACL Injury and Simple Exercises to Prevent It

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Date: 02.12.2018, 22:13 / Views: 94135